Wireless Networking Tools
InSSIDer
InSSIDer is a replacement for NetStumbler that works on Windows Vista and Windows XP.
XIRRUS Wi-Fi Monitoring Tool
The Xirrus Wi-Fi Monitor Widget for Windows XP provides at-a-glance
access to information about all available Wi-Fi networks and your
current Wi-Fi connections. It provides a useful tool for anyone
deploying and operating wifi. Applications include: search for local
Wi-Fi networks, verify Wi-Fi coverage, verify AP settings, detect rogue
APs, locate Wi-Fi devices, aim Wi-Fi antennas. For more information, go
to: http://www.xirrus.com/library/wifitools.php or view the PDF user guide accessed via the About box within the Widget.
Kismet
Kismet is a network detector, packet sniffer, and intrusion detection system for 802.11 wireless LANs. Kismet will work with any wireless card which supports raw monitoring mode, and can sniff 802.11b, 802.11a and 802.11g traffic. The program runs under Linux, FreeBSD, NetBSD, OpenBSD, and Mac OS X. The client can also run on Windows using the specialized AirPcap adapter from Cacetech.
NetStumbler
NetStumbler (also known as Network Stumbler) is a tool for Windows that facilitates detection of Wireless LANs using the 802.11b, 802.11a and 802.11g WLAN standards. A trimmed-down version called MiniStumbler is available for Windows CE. NetStumbler has issues running on Vista. An alternative is Vistumbler.
iStumbler
iStumbler is a utility to display information about nearby 802.11b and 802.11g wireless access points. It is mainly designed to be a tool to help find access points while traveling, or to diagnose wireless network problems. iStumbler can also display Bluetooth and Bonjour network information, and has a dashboard widget.
Wi-Net Window Network Wireless Analyzer
Wi-Net Window Wireless Tester shows a wide range of critically important information connected with wireless equipment regarding their identity, functionality, and capability. A full Alpha/Numeric LCD display shows all the information in a concise and clear manner for ease of use.
KisMac
KisMac is a wireless network discovery tool for Mac OS X. It has a wide range of features, far exceeding that of NetStumbler, its closest equivalent on Windows, and Kismet, its Linux/BSD namesake. KisMAC is no longer being actively developed.